Table 2 Univariate analysis for tumor recurrence
Variable | Hazard ratio | 95 % CI | p value* |
|---|---|---|---|
Age (median) | 0.716 | ||
≤69 | 1.000 | ||
>69 | 0.839 | 0.310–2.268 | |
Gender | 0.142 | ||
Male | 1.000 | ||
Female | 0.426 | 0.152–1.190 | |
Type of surgery | 0.010 | ||
Low anterior resection | 1.000 | ||
Abdominoperineal resection | 3.140 | 0.919–10.725 | |
Tumor location | 0.710 | ||
Upper rectum | 1.000 | ||
Middle rectum | 1.267 | 0.381–4.213 | |
Low rectum | 1.716 | 0.419–7.026 | |
Grade of differentiation | 0.936 | ||
G1 | 1.000 | ||
G2 | 1.933 | 0.416–3.423 | |
G3 | 1.119 | 0.137–9.137 | |
Histologic type | 0.299 | ||
Adenocarcinoma | 1.000 | ||
Adenocarcinoma with mucinous features | 0.381 | 0.096–1.514 | |
Depth of tumor invasion | 0.925 | ||
T3 | 1.000 | ||
T4a | 0.919 | 0.316–2.673 | |
T4b | 0.745 | 0.172–3.223 | |
Tumor size | 0.329 | ||
≤4 cm | 1.000 | ||
>4 cm | 0.594 | 0.214–1.651 |